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<pre><span class="sourceLineNo">001</span>package com.github.sarxos.webcam;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import java.awt.BorderLayout;<a name="line.3"></a>
<span class="sourceLineNo">004</span>import java.awt.event.ItemEvent;<a name="line.4"></a>
<span class="sourceLineNo">005</span>import java.awt.event.ItemListener;<a name="line.5"></a>
<span class="sourceLineNo">006</span>import java.awt.event.WindowEvent;<a name="line.6"></a>
<span class="sourceLineNo">007</span>import java.awt.event.WindowListener;<a name="line.7"></a>
<span class="sourceLineNo">008</span>import java.lang.Thread.UncaughtExceptionHandler;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import javax.swing.JFrame;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import javax.swing.SwingUtilities;<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>import org.slf4j.Logger;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import org.slf4j.LoggerFactory;<a name="line.14"></a>
<span class="sourceLineNo">015</span><a name="line.15"></a>
<span class="sourceLineNo">016</span><a name="line.16"></a>
<span class="sourceLineNo">017</span>/**<a name="line.17"></a>
<span class="sourceLineNo">018</span> * Just a simple webcam viewer.<a name="line.18"></a>
<span class="sourceLineNo">019</span> * <a name="line.19"></a>
<span class="sourceLineNo">020</span> * @author Bartosz Firyn (SarXos)<a name="line.20"></a>
<span class="sourceLineNo">021</span> */<a name="line.21"></a>
<span class="sourceLineNo">022</span>public class WebcamViewer extends JFrame implements Runnable, WebcamListener, WindowListener, UncaughtExceptionHandler, ItemListener {<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>        private static final long serialVersionUID = 1L;<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>        private static final Logger LOG = LoggerFactory.getLogger(WebcamViewer.class);<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span>        private Webcam webcam = null;<a name="line.28"></a>
<span class="sourceLineNo">029</span>        private WebcamPanel panel = null;<a name="line.29"></a>
<span class="sourceLineNo">030</span>        private WebcamPicker picker = null;<a name="line.30"></a>
<span class="sourceLineNo">031</span><a name="line.31"></a>
<span class="sourceLineNo">032</span>        public WebcamViewer() {<a name="line.32"></a>
<span class="sourceLineNo">033</span>                SwingUtilities.invokeLater(this);<a name="line.33"></a>
<span class="sourceLineNo">034</span>        }<a name="line.34"></a>
<span class="sourceLineNo">035</span><a name="line.35"></a>
<span class="sourceLineNo">036</span>        @Override<a name="line.36"></a>
<span class="sourceLineNo">037</span>        public void run() {<a name="line.37"></a>
<span class="sourceLineNo">038</span><a name="line.38"></a>
<span class="sourceLineNo">039</span>                setTitle("Webcam Capture Viewer");<a name="line.39"></a>
<span class="sourceLineNo">040</span>                setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<a name="line.40"></a>
<span class="sourceLineNo">041</span>                setLayout(new BorderLayout());<a name="line.41"></a>
<span class="sourceLineNo">042</span><a name="line.42"></a>
<span class="sourceLineNo">043</span>                addWindowListener(this);<a name="line.43"></a>
<span class="sourceLineNo">044</span><a name="line.44"></a>
<span class="sourceLineNo">045</span>                picker = new WebcamPicker();<a name="line.45"></a>
<span class="sourceLineNo">046</span>                picker.addItemListener(this);<a name="line.46"></a>
<span class="sourceLineNo">047</span><a name="line.47"></a>
<span class="sourceLineNo">048</span>                webcam = picker.getSelectedWebcam();<a name="line.48"></a>
<span class="sourceLineNo">049</span><a name="line.49"></a>
<span class="sourceLineNo">050</span>                if (webcam == null) {<a name="line.50"></a>
<span class="sourceLineNo">051</span>                        LOG.error("No webcams found");<a name="line.51"></a>
<span class="sourceLineNo">052</span>                        System.exit(1);<a name="line.52"></a>
<span class="sourceLineNo">053</span>                }<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span>                webcam.setViewSize(WebcamResolution.VGA.getSize());<a name="line.55"></a>
<span class="sourceLineNo">056</span>                webcam.addWebcamListener(WebcamViewer.this);<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span>                panel = new WebcamPanel(webcam, false);<a name="line.58"></a>
<span class="sourceLineNo">059</span>                panel.setFPSDisplayed(true);<a name="line.59"></a>
<span class="sourceLineNo">060</span><a name="line.60"></a>
<span class="sourceLineNo">061</span>                add(picker, BorderLayout.NORTH);<a name="line.61"></a>
<span class="sourceLineNo">062</span>                add(panel, BorderLayout.CENTER);<a name="line.62"></a>
<span class="sourceLineNo">063</span><a name="line.63"></a>
<span class="sourceLineNo">064</span>                pack();<a name="line.64"></a>
<span class="sourceLineNo">065</span>                setVisible(true);<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span>                Thread t = new Thread() {<a name="line.67"></a>
<span class="sourceLineNo">068</span><a name="line.68"></a>
<span class="sourceLineNo">069</span>                        @Override<a name="line.69"></a>
<span class="sourceLineNo">070</span>                        public void run() {<a name="line.70"></a>
<span class="sourceLineNo">071</span>                                panel.start();<a name="line.71"></a>
<span class="sourceLineNo">072</span>                        }<a name="line.72"></a>
<span class="sourceLineNo">073</span>                };<a name="line.73"></a>
<span class="sourceLineNo">074</span>                t.setName("webcam-viewer-starter");<a name="line.74"></a>
<span class="sourceLineNo">075</span>                t.setDaemon(true);<a name="line.75"></a>
<span class="sourceLineNo">076</span>                t.setUncaughtExceptionHandler(this);<a name="line.76"></a>
<span class="sourceLineNo">077</span>                t.start();<a name="line.77"></a>
<span class="sourceLineNo">078</span>        }<a name="line.78"></a>
<span class="sourceLineNo">079</span><a name="line.79"></a>
<span class="sourceLineNo">080</span>        @Override<a name="line.80"></a>
<span class="sourceLineNo">081</span>        public void webcamOpen(WebcamEvent we) {<a name="line.81"></a>
<span class="sourceLineNo">082</span>                LOG.info("Webcam open");<a name="line.82"></a>
<span class="sourceLineNo">083</span>        }<a name="line.83"></a>
<span class="sourceLineNo">084</span><a name="line.84"></a>
<span class="sourceLineNo">085</span>        @Override<a name="line.85"></a>
<span class="sourceLineNo">086</span>        public void webcamClosed(WebcamEvent we) {<a name="line.86"></a>
<span class="sourceLineNo">087</span>                LOG.info("Webcam closed");<a name="line.87"></a>
<span class="sourceLineNo">088</span>        }<a name="line.88"></a>
<span class="sourceLineNo">089</span><a name="line.89"></a>
<span class="sourceLineNo">090</span>        @Override<a name="line.90"></a>
<span class="sourceLineNo">091</span>        public void webcamDisposed(WebcamEvent we) {<a name="line.91"></a>
<span class="sourceLineNo">092</span>                LOG.info("Webcam disposed");<a name="line.92"></a>
<span class="sourceLineNo">093</span>        }<a name="line.93"></a>
<span class="sourceLineNo">094</span><a name="line.94"></a>
<span class="sourceLineNo">095</span>        @Override<a name="line.95"></a>
<span class="sourceLineNo">096</span>        public void webcamImageObtained(WebcamEvent we) {<a name="line.96"></a>
<span class="sourceLineNo">097</span>                // do nothing<a name="line.97"></a>
<span class="sourceLineNo">098</span>        }<a name="line.98"></a>
<span class="sourceLineNo">099</span><a name="line.99"></a>
<span class="sourceLineNo">100</span>        @Override<a name="line.100"></a>
<span class="sourceLineNo">101</span>        public void windowActivated(WindowEvent e) {<a name="line.101"></a>
<span class="sourceLineNo">102</span>        }<a name="line.102"></a>
<span class="sourceLineNo">103</span><a name="line.103"></a>
<span class="sourceLineNo">104</span>        @Override<a name="line.104"></a>
<span class="sourceLineNo">105</span>        public void windowClosed(WindowEvent e) {<a name="line.105"></a>
<span class="sourceLineNo">106</span>                webcam.close();<a name="line.106"></a>
<span class="sourceLineNo">107</span>        }<a name="line.107"></a>
<span class="sourceLineNo">108</span><a name="line.108"></a>
<span class="sourceLineNo">109</span>        @Override<a name="line.109"></a>
<span class="sourceLineNo">110</span>        public void windowClosing(WindowEvent e) {<a name="line.110"></a>
<span class="sourceLineNo">111</span>        }<a name="line.111"></a>
<span class="sourceLineNo">112</span><a name="line.112"></a>
<span class="sourceLineNo">113</span>        @Override<a name="line.113"></a>
<span class="sourceLineNo">114</span>        public void windowOpened(WindowEvent e) {<a name="line.114"></a>
<span class="sourceLineNo">115</span>        }<a name="line.115"></a>
<span class="sourceLineNo">116</span><a name="line.116"></a>
<span class="sourceLineNo">117</span>        @Override<a name="line.117"></a>
<span class="sourceLineNo">118</span>        public void windowDeactivated(WindowEvent e) {<a name="line.118"></a>
<span class="sourceLineNo">119</span>        }<a name="line.119"></a>
<span class="sourceLineNo">120</span><a name="line.120"></a>
<span class="sourceLineNo">121</span>        @Override<a name="line.121"></a>
<span class="sourceLineNo">122</span>        public void windowDeiconified(WindowEvent e) {<a name="line.122"></a>
<span class="sourceLineNo">123</span>                LOG.info("Webcam viewer resumed");<a name="line.123"></a>
<span class="sourceLineNo">124</span>                panel.resume();<a name="line.124"></a>
<span class="sourceLineNo">125</span>        }<a name="line.125"></a>
<span class="sourceLineNo">126</span><a name="line.126"></a>
<span class="sourceLineNo">127</span>        @Override<a name="line.127"></a>
<span class="sourceLineNo">128</span>        public void windowIconified(WindowEvent e) {<a name="line.128"></a>
<span class="sourceLineNo">129</span>                LOG.info("Webcam viewer paused");<a name="line.129"></a>
<span class="sourceLineNo">130</span>                panel.pause();<a name="line.130"></a>
<span class="sourceLineNo">131</span>        }<a name="line.131"></a>
<span class="sourceLineNo">132</span><a name="line.132"></a>
<span class="sourceLineNo">133</span>        @Override<a name="line.133"></a>
<span class="sourceLineNo">134</span>        public void uncaughtException(Thread t, Throwable e) {<a name="line.134"></a>
<span class="sourceLineNo">135</span>                e.printStackTrace();<a name="line.135"></a>
<span class="sourceLineNo">136</span>                LOG.error(String.format("Exception in thread %s", t.getName()), e);<a name="line.136"></a>
<span class="sourceLineNo">137</span>        }<a name="line.137"></a>
<span class="sourceLineNo">138</span><a name="line.138"></a>
<span class="sourceLineNo">139</span>        @Override<a name="line.139"></a>
<span class="sourceLineNo">140</span>        public void itemStateChanged(ItemEvent e) {<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span>                if (e.getItem() == webcam) {<a name="line.142"></a>
<span class="sourceLineNo">143</span>                        return;<a name="line.143"></a>
<span class="sourceLineNo">144</span>                }<a name="line.144"></a>
<span class="sourceLineNo">145</span><a name="line.145"></a>
<span class="sourceLineNo">146</span>                if (webcam == null) {<a name="line.146"></a>
<span class="sourceLineNo">147</span>                        return;<a name="line.147"></a>
<span class="sourceLineNo">148</span>                }<a name="line.148"></a>
<span class="sourceLineNo">149</span><a name="line.149"></a>
<span class="sourceLineNo">150</span>                final WebcamPanel tmp = panel;<a name="line.150"></a>
<span class="sourceLineNo">151</span><a name="line.151"></a>
<span class="sourceLineNo">152</span>                remove(panel);<a name="line.152"></a>
<span class="sourceLineNo">153</span><a name="line.153"></a>
<span class="sourceLineNo">154</span>                webcam.removeWebcamListener(this);<a name="line.154"></a>
<span class="sourceLineNo">155</span><a name="line.155"></a>
<span class="sourceLineNo">156</span>                webcam = (Webcam) e.getItem();<a name="line.156"></a>
<span class="sourceLineNo">157</span>                webcam.setViewSize(WebcamResolution.VGA.getSize());<a name="line.157"></a>
<span class="sourceLineNo">158</span>                webcam.addWebcamListener(this);<a name="line.158"></a>
<span class="sourceLineNo">159</span><a name="line.159"></a>
<span class="sourceLineNo">160</span>                System.out.println("selected " + webcam.getName());<a name="line.160"></a>
<span class="sourceLineNo">161</span><a name="line.161"></a>
<span class="sourceLineNo">162</span>                panel = new WebcamPanel(webcam, false);<a name="line.162"></a>
<span class="sourceLineNo">163</span><a name="line.163"></a>
<span class="sourceLineNo">164</span>                add(panel, BorderLayout.CENTER);<a name="line.164"></a>
<span class="sourceLineNo">165</span><a name="line.165"></a>
<span class="sourceLineNo">166</span>                Thread t = new Thread() {<a name="line.166"></a>
<span class="sourceLineNo">167</span><a name="line.167"></a>
<span class="sourceLineNo">168</span>                        @Override<a name="line.168"></a>
<span class="sourceLineNo">169</span>                        public void run() {<a name="line.169"></a>
<span class="sourceLineNo">170</span>                                tmp.stop();<a name="line.170"></a>
<span class="sourceLineNo">171</span>                                panel.start();<a name="line.171"></a>
<span class="sourceLineNo">172</span>                        }<a name="line.172"></a>
<span class="sourceLineNo">173</span>                };<a name="line.173"></a>
<span class="sourceLineNo">174</span>                t.setDaemon(true);<a name="line.174"></a>
<span class="sourceLineNo">175</span>                t.setUncaughtExceptionHandler(this);<a name="line.175"></a>
<span class="sourceLineNo">176</span>                t.start();<a name="line.176"></a>
<span class="sourceLineNo">177</span><a name="line.177"></a>
<span class="sourceLineNo">178</span>        }<a name="line.178"></a>
<span class="sourceLineNo">179</span>}<a name="line.179"></a>




























































</pre>
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